As mentioned, the best place to start is a bare board. Given that, I
recommend that you hire a board population house to remove the parts -- with
the minimum of damage.

The rest is grunt work. Route one side of the board, flip (mirror) the
result, then route the other side to match. This recommendation is based on
the circuit's description and age, which suggests a 2-sided, through-hole
design.

Shawn


>>Mauricio Jancic wrote:
> > >=A0Hi,
> > >=A0I have two boards from a customer who wants me to
> > produce identical
> > >=A0replacements. This are 10+ years old boards
> > (Stepper controller)
> > >=A0with a bunch of logic, comparators, and some other
> > parts. No
> > >=A0microcontrollers.
> > >
> > >=A0I would like to know if there is a set of tools
> > available to
> > >=A0reproduce as exactly as posible a board, in order
> > not to have to
> > >=A0follow all the traces with the multimeter and the
> > make the
> > >=A0schematic.
> > >
> > >=A0Any ideas?
> > >
> > >=A0Regards,
> > >
> > >=A0Mauricio



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